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STALIN [3.7K]
3 years ago
9

Explain Newton’s 3 laws of motion by using the example of a rollercoaster?

Physics
1 answer:
ivolga24 [154]3 years ago
5 0

Newton's First law states the Law of Inertia. The Law of Inertia says that an object at rest must stay at rest unless an applied force is acted upon it. Roller coasters run by this law, they must be pulled by a motor to get started. ... At ride will continue until another opposite force is applied to the ride, the breaks.

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1. This heating system maintains room temperature at or near a particular value, known as the .
stiv31 [10]

Answer:

Explanation:

1. This heating system maintains room temperature at or near a particular value, known as the set point.

A temperature setpoint is the level at which the body attempts to maintain its temperature. When the setpoint is raised, the result is a fever.

2. You open the window, and a blast of icy air enters the room. The temperature drops to 17 degrees Celsius, which acts as a STIMULUS to the heating system.

3. The thermostat is a SENSOR that detects the stimulus and triggers a response.

Thermostat is use to turn off or on a switch, when the temperature is high or low

4. The heater turns on, and the temperature in the room INCREASE until it returns to the original setting.

This is the work of the thermostat above, when the temperature of the room is below a certain temperature the thermostat triggered the switch and keep increasing the temperature of the room until normal setting.

5. The response of the heating system reduces the stimulus. This is an example of NEGATIVE feedback.

Body temperature is regulated by negative feedback. The stimulus is when the body temperature exceeds 37 degrees Celsius, the sensors are the nerve cells with endings in the skin and brain, the control is the temperature regulatory center in the brain, and the effector is the sweat glands throughout the body.

6. The way this heating system maintains a stable room temperature is similar to the way an animal's body controls many aspects of its internal environment. The maintenance of a relatively constant internal environment is known as HOMEOSTASIS.

Humans rely on homeostasis to keep their core temperature hovering around 98.6 degrees Fahrenheit, so that their bodies can maintain proper function. Homeostasis is the ability to maintain a relatively stable internal state that persists despite changes in the world outside.

5 0
4 years ago
Change in temperature of body is 50°C the change in temperature on Kelvin scale is?<br> Ans is 5oK
nata0808 [166]
The changes in celsius are the same as those in kelvins. the difference between the two scales is that 0 celsius is about 273 kelvins and that 0 kelvins is about -273 celsius (note the minus sign)
3 0
4 years ago
Calculate the kinetic energy of a 1 kg object moving at 4.5 ms. Round to the first decimal.
harina [27]

Answer:

91.21

Explanation:

Kinetic energy =1/2 mv2 substitute the values I. E 1/2 *1 *4.5^2= 91.21

8 0
3 years ago
20. A 0.145 kg mass of tungsten at 130.0 °C is placed in a 0.502 kg of water at 22.0 °C. The mixture reaches equilibrium at 28.6
zepelin [54]
MaCa∆Tb = MbC∆Tb
Where m is the mass of a compound
<span> C is the specific heat of a compound 
</span>∆T is the change of temperature of the compound  
<span> (0.502 kg water)(4180 j/kg C)( 28.6 – 22 C) = ( 0.145 kg tungsten) ( C ) ( 130 – 28.6 C) 
</span>Solve for C
<span>C = 941.9 J /kg C </span>
8 0
3 years ago
2. What is the final velocity of an object that is traveling at 5.0 m/s and accelerates at
Elena L [17]

Answer:

22.74 m/s

Explanation:

u= 5.0

a= 2.4

t= 7.39

Therefore the final velocity can be calculated as follows

v = u + at

v= 5 + 2.4(7.39)

v= 5 + 17.736

v= 22.74 m/s

Hence the final velocity of the object is 22.74 m/s

3 0
4 years ago
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